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LT3580HMS8E

更新时间： 2024-01-15 06:36:01
品牌 Logo 应用领域
凌特 - Linear 转换器开关
页数 文件大小 规格书
28页 274K
描述
Boost/Inverting DC/DC Converter with 2A Switch, Soft-Start, and Synchronization

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中文翻译

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LT3580HMS8E 技术参数

是否无铅： 含铅是否Rohs认证： 符合
生命周期：Active包装说明：HTSSOP,
针数：8Reach Compliance Code：compliant
风险等级：5.12模拟集成电路 - 其他类型：SWITCHING REGULATOR
控制模式：CURRENT-MODE控制技术：PULSE WIDTH MODULATION
最大输入电压：32 V最小输入电压：2.5 V
标称输入电压：5 VJESD-30 代码：S-PDSO-G8
JESD-609代码：e3长度：3 mm
湿度敏感等级：1功能数量：1
端子数量：8最大输出电流：2.8 A
封装主体材料：PLASTIC/EPOXY封装代码：HTSSOP
封装形状：SQUARE封装形式：SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：225认证状态：Not Qualified
座面最大高度：1.1 mm表面贴装：YES
切换器配置：BOOST最大切换频率：2500 kHz
技术：CMOS端子面层：Matte Tin (Sn)
端子形式：GULL WING端子节距：0.65 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：3 mmBase Number Matches：1

LT3580HMS8E 数据手册

 浏览型号LT3580HMS8E的Datasheet PDF文件第2页浏览型号LT3580HMS8E的Datasheet PDF文件第3页浏览型号LT3580HMS8E的Datasheet PDF文件第4页浏览型号LT3580HMS8E的Datasheet PDF文件第5页浏览型号LT3580HMS8E的Datasheet PDF文件第6页浏览型号LT3580HMS8E的Datasheet PDF文件第7页 
LT3580  
Boost/Inverting DC/DC  
Converter with 2A Switch,  
Soft-Start, and Synchronization  
FEATURES  
DESCRIPTION  
The LT®3580 is a PWM DC/DC converter containing an  
internal 2A, 42V switch. The LT3580 can be configured  
as either a boost, SEPIC or inverting converter. Capable  
of generating 12V at 550mA or –12V at 350mA from a  
5V input, the LT3580 is ideal for many local power supply  
designs.  
n
2A Internal Power Switch  
n
Adjustable Switching Frequency  
n
Single Feedback Resistor Sets V  
OUT  
n
Synchronizable to External Clock  
High Gain SHDN Pin Accepts Slowly Varying  
Input Signals  
n
n
n
n
n
n
n
Wide Input Voltage Range: 2.5V to 32V  
The LT3580 has an adjustable oscillator, set by a resistor  
from the RT pin to ground. Additionally, the LT3580 can  
be synchronized to an external clock. The free running or  
synchronized switching frequency range of the part can  
be set between 200kHz and 2.5MHz.  
Low V  
Switch: 300mV at 1.5A (Typical)  
CESAT  
Integrated Soft-Start Function  
Easily Configurable as a Boost or Inverting Converter  
User Configurable Undervoltage Lockout (UVLO)  
Tiny 8-Lead 3mm × 3mm DFN and 8-Lead MSOP  
Packages  
The LT3580 also features innovative SHDN pin circuitry  
that allows for slowly varying input signals and an adjust-  
able undervoltage lockout function.  
APPLICATIONS  
Additional features such as frequency foldback and  
soft-start are integrated. The LT3580 is available in tiny  
3mm × 3mm 8-lead DFN and 8-lead MSOP packages.  
n
VFD Bias Supplies  
n
TFT-LCD Bias Supplies  
n
GPS Receivers  
DSL Modems  
Local Power Supply  
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear  
Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation. All other  
trademarks are the property of their respective owners.  
n
n
TYPICAL APPLICATION  
1.2MHz, 5V to 12V Boost Converter Achieves Over 88% Efficiency  
Efficiency and Power Loss  
95  
90  
85  
80  
75  
70  
65  
60  
55  
50  
1200  
1000  
800  
600  
400  
200  
0
4.2μH  
V
OUT  
V
5V  
IN  
12V  
550mA  
10μF  
V
SW  
GND  
IN  
SHDN  
130k  
LT3580  
RT  
FB  
VC  
SYNC  
SS  
10k  
1nF  
75k  
2.2μF  
0.1μF  
3580 TA01  
0
100  
200  
300  
600  
400  
500  
LOAD CURRENT (mA)  
3580 TA01b  
3580fg  
1
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中文翻译

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